Operation Keys for local control are found at
the bottom of the control panel.
130BP046.10
[Hand On]
enables control of the adjustable frequency drive via the GLCP. [Hand on] also starts the motor
and makes it possible to enter the motor speed data by using the arrow keys. The key can be
selected as
Enable
[1] or
Disable
[0] via par.
0-40 [Hand on] key on LCP.
The following control signals will still be active when [Hand on] is activated:
• [Hand on] - [Off] - [Auto on]
• Reset
• Coasting stop inverse
• Reversing
• Set-up select lsb - Set-up select msb
• Stop command from serial communication
•Quick stop
•DC brake
NOTE
External stop signals activated by using control signals or serial bus will override a
“start” command via the LCP.
[Off]
stops the connected motor. The key can be selected as
Enable
[1] or
Disable
[0] via par.
0-41
[Off] key on LCP.
If no external stop function is selected, and the [Off] key is inactive, the motor
can only be stopped by disconnecting the line power supply.
[Auto On]
enables the adjustable frequency drive to be controlled via the control terminals and/or serial
communication. When a start signal is applied to the control terminals and/or the bus, the ad-
justable frequency drive will start. The key can be selected as
Enable
[1] or
Disable
[0] via par.
0-42 [Auto on] key on LCP.
NOTE
An active HAND-OFF-AUTO signal via the digital inputs has higher priority than the
control keys [Hand on] – [Auto on].
[Reset]
is used for resetting the adjustable frequency drive after an alarm (trip). It can be selected as
Enable
[1] or
Disable
[0] via par. 0-43
Reset Keys on LCP
.
5. How to operate the adjustable frequency
drive
VLT
®
HVAC Drive Instruction Manual
54
MG.11.A4.22 - VLT
®
is a registered Danfoss trademark
5
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